Spindle-retaining device.



E. D. GHESEBRO.

SPINDLE RETAINING DEVICE.

APPLIUATION FILED DEC. 8, 1910.

1,071,297,, Patented Aug. 26, 1913.

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ERAS'IUS D. OHESEBRO, 0F STONINGTON, CONNECTICUT, ASSIGNOB TO THEA'IVTOOD MACHINE COMPANY, OF STONINGTON, CONNECTICUT, A CORPORATION OFNEW JERSEY.

SPINDLE-RETAINING DEVICE.

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Application filed. December 8, 1910.

To all whom it may concern:

Be it known that l, Enasros D. Cnnsnnno, a citizen of the United States,and resident of Stonington, in the county of New London and State ofConnecticut, have invented a new and useful Spindle-Retaining Device, ofwhich the following is a specification.

lVty invention relates to a spindle retaining device, and moreparticularly to means for retaining the spindle of a spinning or windingmachine from unintentional displacement while removing a bobbintherefrom.

In practice, the quick removal of a bobbin has frequently resulted inunseating the spindle from its step, causing delay. My present inventionis directed to simple means for preventing such unseating of the spindleand consequent delay, by providing a retaining device which will holdthe spindle in its step whatever be the normal lift on the spindle dueto the friction between the bobbin and spindle at the moment of removingthe bobbin therefrom and which will at the same time in no wise hinderthe free rotary movement of the spindle and will admit of the readyremoval of the spindle from its step when desired.

A practical embodiment of my invention is represented in theaccompanying drawings in which,

Figure 1 is a view in side elevation of a spindle, its whirl and step,showing the retaining device in its relation thereto. Fig. 2 is a topplan view of the same, showing the spindle in section and the flange atthe bottom of the whirl partly broken away, and Fig. 3 is a verticalcentral section of the same.

The spindle is denoted by 1, its whirl by 2 and. the spindle base by 3.The lower end of the whirl is provided with a ledge or flange lextending outwardly therefrom, as the preferred means for placing itunder the control of the retaining device. The retaining devicepreferably consists of a bolt or plunger 5 seated in a horizontalperforation 6 in the upwardly extending end 7 of an arm 8 branching fromand formed integral with or fixed to the spindle base 8. The part 7extends upwardly to such an em Specification of Letters Patent.

Patented ring. 26, 1911.3.

Serial No. 596,326.

tent as to bring the perforation 6 above the flange 4 on the whirl. Thebelt or plunger 5 1s provlded with two annular grooves.9

and 10, which are adapted to receive the upper arm of a spring 11 madefast to the part 7 and projecting through a slit 12 extending downwardlyfrom the top of the part 7. Then the spring arm 11 is in the groove 9,the bolt or plunger will be held in position with its inner end over theflange 4 so that the whirl 2 andhence the spindle 1 cannot be liftedsufficiently to unseat the spindle. In the event it is desired to removethe spindle, the spring arm 11 may be pressed out of the groove 9 andthe bolt or plunger 5 slid outwardly until the spring arm 11 seats inthe groove 1.0. For convenience in sliding the bolt. or plunger 5outward or inward, the adjacent walls of the two grooves 9 and 1.0 arebeveled as at 13, I l, so that a positive endwise push on the bolt orplunger will force the spring arm 11 downward. and permit the bolt orplunger to slide until the spring arm is seated in the adjacent groove.The opposite walls of the said grooves are, however, abrupt, so that thebolt or plunger is positively held against displacen'ient from its seatin the perforation 6, unless the spring arm be forced down and held downwhile the bolt is withdrawn to a point beyond the groove 10.

This simple device is a positive stop against the unintentional. removalof the spindle while permitting its intentional removal.

What I claim is:

1. The combination with a spindle provided with a ledge and a spindlebase provided with an arm, of a spindle retaining device seated in saidarm in position to slide over the said ledge, the said retaining devicebeingprovided with a groove having an abrupt side and a beveled side anda spring in position to enter the groove.

2. The combination with a spindle provided with a whirl. having a ledgethereon and a spindle base provided with an arm projecting outwardly andupwardly there from, of a spindle retaining device seated in said arm inposition to slide over said edge, the retaining device being providedpresence of tWo Witnesses, this 5th day of with grooves spaced apartthereon, and a December 1910.

sprin arranged to enter either one of said groov es to hold theretaining device in either ERASTUS CHESEBRO' looking or releasingposition. Witnesses:

In testimony, that- I claim the foregoing B. S. CUTLER, as my nvention,I have signed my name 1n I EDWARD E. 'BRADLEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

